基于CAE的木塑包覆口模设计及共挤模拟
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摘要
为了降低生产成本,提高设计效率和设计精度,结合木塑复合材料特殊的性能,借助CAE软件对共挤出模头进行辅助设计。并由制件尺寸逆向模拟口模定型段尺寸、口模口型尺寸等影响制品质量的关键性参数,然后对异型材挤出流道的整体结构进行设计,最后采用正向模拟对共挤模头进行流场分析,检验其可靠性。
Combined with the special properties of wood plastic composites,CAE software was used to assist the die design in order to reduce the production cost and improve the efficiency and accuracy of design.The key parameters affecting the product quality such as the size of the die-forming section and the die-mouth size were inverted calculated. Then,the overall structure of the extrusion flow passage of the coated section was designed. Finally, the coextrusion die head was analyzed using forward extrusion function to test reliability.
Combined with the special properties of wood plastic composites,CAE software was used to assist the die design in order to reduce the production cost and improve the efficiency and accuracy of design.The key parameters affecting the product quality such as the size of the die-forming section and the die-mouth size were inverted calculated. Then,the overall structure of the extrusion flow passage of the coated section was designed. Finally, the coextrusion die head was analyzed using forward extrusion function to test reliability.
引文
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[9]刘斌,马俊. Polylfow逆向挤出功能在异型材口模设计中的应用[J].塑料科技,2008,36(1):66-70.
[10]张金斌,许澍华,江波.木塑复合材料制品一步法挤出成型技术的研究[J].塑料,2004,33(5):1-5.
[11]孔新,宁海蓉,蒋文才,等.软硬质聚氯乙烯共挤模具设计[J].工程塑料应用,2001,29(8):36-38.
[12]施桢蓉.木塑复合材料挤出模设计[J].淮海工学院学报(自然科学版),2008,17(3):15-17.
[13] MIGNEAULT S, KOUBAA A, ERCHIQUI F, et al.Effects of processing method and fiber size on the structure and properties of wood-plastic composites[J]. Composites:Part A,2009,40:80-85.
[14]李学章,郭奕崇.管材挤出模具新型压缩段流道的研究[J].北京工业大学学报,2005,32(3):103-105.
[15]秋潼雁.基于知识的管材挤出模头智能化设计与研究[D].广州:华南理工大学,2012.
[2] AHMED R, LIANG R F, MACKLEY M R. The experimental ob-servation and numerical prediction of planar entry flow and die swell for molten polyethylene[J]. J NonNewtonian Fluid Mech,2005,59:129-153.
[3] GARCIA R,DIRADDO R W,RYAN M E. Effect of die geometry and flow characteristics on viscoelastic annular swell[J]. J Non-Newtonian Fluid Mech,2005,60:100-128.
[4] WU Y,MCKINLEYB G H,DEBBAUT B. Exten-sional deformation,stress relaxation and necking failure of viscoelastic filaments[J]. J Non-Newtonian Fluid Mech,2008,79:469-501.
[5]吕晓东,钟佩思,吝伟伟,等.基于ANSYS Polyflow的胶管挤出模头设计[J].橡胶工业,2015,62:756-759.
[6]戴元坎,郭莹,俞炜,等.三元乙丙橡胶在简单口型中的正向挤出分析及逆向口型设计[J].合成橡胶工业,2007,30(2):124-129.
[7]刘斌,王玉龙,秋潼雁.基于知识的直通式管材挤出模头智能化设计[J].塑料,2013,42(2):14-18.
[8]杨佳黎,柳和生,黄兴元,等. Polyflow逆向挤出功能在T型材口模设计中的应用[J].塑料,2011,40(1):114-117.
[9]刘斌,马俊. Polylfow逆向挤出功能在异型材口模设计中的应用[J].塑料科技,2008,36(1):66-70.
[10]张金斌,许澍华,江波.木塑复合材料制品一步法挤出成型技术的研究[J].塑料,2004,33(5):1-5.
[11]孔新,宁海蓉,蒋文才,等.软硬质聚氯乙烯共挤模具设计[J].工程塑料应用,2001,29(8):36-38.
[12]施桢蓉.木塑复合材料挤出模设计[J].淮海工学院学报(自然科学版),2008,17(3):15-17.
[13] MIGNEAULT S, KOUBAA A, ERCHIQUI F, et al.Effects of processing method and fiber size on the structure and properties of wood-plastic composites[J]. Composites:Part A,2009,40:80-85.
[14]李学章,郭奕崇.管材挤出模具新型压缩段流道的研究[J].北京工业大学学报,2005,32(3):103-105.
[15]秋潼雁.基于知识的管材挤出模头智能化设计与研究[D].广州:华南理工大学,2012.